CN111549786B - Detachable concave embedded type foundation pit inner supporting structure - Google Patents
Detachable concave embedded type foundation pit inner supporting structure Download PDFInfo
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- CN111549786B CN111549786B CN202010306221.7A CN202010306221A CN111549786B CN 111549786 B CN111549786 B CN 111549786B CN 202010306221 A CN202010306221 A CN 202010306221A CN 111549786 B CN111549786 B CN 111549786B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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Abstract
The invention discloses a detachable concave embedded type foundation pit inner supporting structure, and aims to provide a detachable concave embedded type foundation pit inner supporting structure which can effectively improve the shearing resistance and stability of a connecting structure between a triangular supporting piece and a profile steel surrounding purlin beam, so that the stability of the foundation pit supporting structure is improved. It includes that foundation ditch fender pile, setting enclose the purlin roof beam, set up triangle support piece and interior supporting beam on the purlin roof beam at the inboard shaped steel of foundation ditch fender pile, triangle support piece passes through connecting bolt and connects on shaped steel encloses the purlin roof beam, interior supporting beam is to propping on shaped steel encloses the purlin roof beam through triangle support piece, triangle support piece and shaped steel enclose and be equipped with concave formula conversion power transmission structure of inlaying between the purlin roof beam, concave formula conversion power transmission structure of inlaying is including setting up the biography power groove on shaped steel encloses the purlin roof beam and setting up the protruding piece of biography power on triangle support piece's base, the protruding piece of biography power inlays and establishes at biography power inslot.
Description
Technical Field
The invention relates to a foundation pit supporting structure, in particular to a detachable concave embedded type foundation pit inner supporting structure.
Background
A current foundation pit bearing structure includes foundation pit fender pile, sets up at the inboard shaped steel of foundation pit fender pile and encloses the purlin roof beam, sets up triangle support piece and the interior supporting beam on shaped steel encloses the purlin roof beam. The triangular support piece is connected to the profile steel surrounding purlin beam through a connecting bolt. The inner supporting beam is supported on the profile steel surrounding purlin beams through the triangular supporting pieces, and particularly, the profile steel inner supporting beam exerts prestress through the hydraulic jack so as to support between the profile steel surrounding purlin beams on two opposite sides through the triangular supporting pieces, and accordingly support for the foundation pit is formed. Among this kind of foundation ditch bearing structure at present, when receiving soil pressure, shaped steel encloses and will produce the shearing force between purlin and the triangle support piece, and these shearing forces will be used in shaped steel and enclose on the connection structure between purlin and the triangle support piece, and present triangle support piece generally directly connects on shaped steel encloses the purlin roof beam through connecting bolt, and bolted connection structure bears the ability of shearing force not good, appears becoming flexible easily, destroys to lead to whole foundation ditch bearing structure's destruction.
Disclosure of Invention
The invention aims to provide a detachable concave embedded type foundation pit inner supporting structure which can effectively improve the shearing resistance and stability of a connecting structure between a triangular supporting piece and a profile steel surrounding purlin beam, so that the stability of the foundation pit supporting structure is improved.
The technical scheme of the invention is as follows:
the utility model provides a concave formula foundation ditch inner supporting structure that inlays of detachable, includes foundation ditch fender pile, sets up at the inboard shaped steel of foundation ditch fender pile encloses the purlin roof beam, sets up triangle support piece and the interior supporting beam on shaped steel encloses the purlin roof beam, triangle support piece passes through connecting bolt and connects on shaped steel encloses the purlin roof beam, an interior supporting beam passes through triangle support piece and to propping on shaped steel encloses the purlin roof beam, triangle support piece and shaped steel enclose and be equipped with concave formula conversion biography power structure, concave formula conversion biography power structure of inlaying is including setting up the biography power groove on shaped steel encloses the purlin roof beam and set up the protruding piece of biography power on triangle support piece's base, pass the protruding piece of biography power and inlay. The connection structure that triangular support piece and shaped steel enclose the purlin roof beam in this scheme includes concave formula conversion force transfer structure of inlaying and connects the connecting bolt that triangular support piece and shaped steel enclose the purlin roof beam, and wherein concave formula conversion force transfer structure of inlaying can effectual improvement triangular support piece and shaped steel enclose connection structure between the purlin roof beam's anti-shear capacity and stability to improve foundation ditch bearing structure's stability.
Preferably, the triangular support piece comprises a triangular support inner core and at least one section of section steel combination layer which is sequentially distributed on the waist edge of the triangular support inner core from inside to outside, the force transmission convex piece is arranged on the bottom edge of the triangular support inner core, the section steel combination layer comprises two waist edge section steels and is arranged in one section of section steel combination layer adjacent to the triangular support inner core: one waist-side section steel is connected to one waist side of the triangular support inner core through a bolt, and the other waist-side section steel is connected to the other waist side of the triangular support inner core through a bolt. Therefore, the actual size of the triangular support part is adjusted by adjusting the number of layers of the section steel combination layer so as to adapt to the inner support beams with different lengths and improve the universality of the triangular support part.
Preferably, in the two adjacent steel section combination layers: the waist-side section steel of the section steel combination layer positioned on the outer side is connected with the waist-side section steel of the section steel combination layer positioned on the inner side through bolts.
Preferably, two outer wedging blocks are arranged in the force transmission groove, the force transmission convex part comprises two inner wedging blocks, a pre-tightening compression spring positioned between the two inner wedging blocks and a rigid-flexible adjusting type supporting part positioned between the two inner wedging blocks, the two inner wedging blocks are positioned between the two outer wedging blocks, the inner wedging blocks can move along the length direction of the bottom edge of the triangular support inner core, the side surface of each outer wedging block facing the inner wedging block is an outer wedging inclined surface, the side surface of each inner wedging block facing the outer wedging blocks is an inner wedging inclined surface, the rigid-flexible adjusting type supporting part comprises a supporting cylinder, a supporting column arranged in the supporting cylinder in a sliding manner, a threaded sleeve and a guide sleeve which are arranged on the outer side surface of the supporting cylinder, a driving screw matched with the threaded sleeve, an adjusting column arranged in the guide sleeve in a sliding manner and a plurality of steel balls filled in the supporting cylinder, the first end of the supporting cylinder is closed, the second end of the supporting cylinder is opened, the first end of the supporting cylinder is connected with one of the inner wedging blocks, one end of the supporting column penetrates through the second end opening of the supporting cylinder and is connected with the other inner wedging block, the steel ball is positioned between the first end of the supporting cylinder and the supporting column, the threaded sleeve and the guide sleeve are coaxially distributed, and the driving screw is connected with the adjusting column;
when the triangular support piece is connected to the profile steel purlin beam through the connecting bolt, the driving screw rod is rotated to drive the adjusting column to move in the direction away from the supporting cylinder, so that steel balls in the supporting cylinder can enter the guide sleeve, the supporting column can move in the supporting cylinder, the distance between the two inner wedging blocks is reduced, and the bottom edge of the triangular support piece can be abutted against the side face of the profile steel purlin beam; after the triangular supporting piece is connected to the profile steel surrounding purlin beam through the connecting bolt, under the action of a pre-tightening compression spring, an inner wedging inclined plane of the inner wedging block abuts against an outer wedging inclined plane of the outer wedging block, and the outer wedging block abuts against the inner side wall of the force transmission groove;
after the triangular supporting piece is connected to the profile steel surrounding purlin beam through the connecting bolt, the driving screw rod is rotated to drive the adjusting column to move towards the supporting cylinder, and the steel balls in the supporting cylinder are compressed tightly, so that the supporting column is supported through the steel balls in the supporting cylinder.
The force transfer convex piece is easy to have a gap after being inserted into the force transfer groove, and once the force transfer convex piece is inserted into the force transfer groove, the shear resistance of a connecting structure between the triangular supporting piece and the profile steel surrounding purlin beam can be greatly reduced; in particular, the method comprises the following steps of,
when triangular support element passes through connecting bolt and connects on shaped steel encloses the purlin roof beam, through rotating drive screw drives and adjusts the post and remove toward keeping away from a support section of thick bamboo direction, makes the steel ball in the support section of thick bamboo can get into in the uide bushing to make the support column can remove toward a support section of thick bamboo, reduce the interval between the wedging piece in two, thereby make triangular support element's base can tightly lean on the side that shaped steel encloses the purlin roof beam. After the triangular supporting piece is connected to the profile steel surrounding purlin beam through the connecting bolt, under the action of a pre-tightening compression spring, an inner wedging inclined plane of the inner wedging block abuts against an outer wedging inclined plane of the outer wedging block, and the outer wedging block abuts against the inner side wall of the force transmission groove; after the triangular support piece is connected to the profile steel surrounding purlin beam through the connecting bolt, the driving screw rod is rotated to drive the adjusting column to move towards the supporting cylinder, the steel balls in the supporting cylinder are compressed, and the supporting column is supported through the steel balls in the supporting cylinder, so that the reliability of a force transmission structure between the outer wedging block, the inner wedging block, the supporting cylinder and the supporting column is guaranteed.
Preferably, the outer diameter of the adjustment post is larger than the outer diameter of the drive screw.
Preferably, the pretensioned compression spring is mounted on the support cylinder.
Preferably, the threaded sleeve is positioned above the support cylinder, and the guide sleeve is positioned below the support cylinder.
Preferably, the inner wedging block is provided with a strip-shaped hole, the length direction of the strip-shaped hole is parallel to the length direction of the bottom edge of the triangular support member, bottom edge bolts which are in one-to-one correspondence with the inner wedging block are arranged on the bottom edge of the triangular support member, and the bottom edge bolts penetrate through the corresponding strip-shaped holes in the inner wedging block.
Preferably, the two outer wedge blocks are symmetrically distributed, and the two inner wedge blocks are symmetrically distributed.
Preferably, the triangular supports are isosceles triangles.
The invention has the beneficial effects that: can effectively improve the anti shear capacity and the stability of the connection structure between triangular supports spare and the shaped steel enclosing purlin roof beam to improve foundation ditch bearing structure's stability.
Drawings
Fig. 1 is a schematic structural diagram of a detachable recessed embedded type foundation pit inner support structure according to a first embodiment of the present invention.
Fig. 2 is an exploded view of the triangular supports of the present invention.
FIG. 3 is an assembly view of the triangular supports of the present invention.
Fig. 4 is a schematic structural diagram of a detachable recessed embedded type foundation pit inner supporting structure according to a second embodiment of the present invention.
Fig. 5 is a partial enlarged view of a portion a of fig. 4.
Fig. 6 is a schematic view of a partial cross-sectional structure at B-B in fig. 5.
In the figure:
a foundation pit fender post 1;
the section steel encloses the purlin beam 2;
a triangular support part 3, a triangular support inner core 3.1, a section steel combination layer 3.2 and a waist section steel 3.21;
an inner support beam 4;
the device comprises a force transmission convex part 5, an inner wedging block 5.1, a rigid-flexible adjusting type supporting part 5.2, a supporting cylinder 5.21, a supporting column 5.22, a steel ball 5.23, a driving screw 5.24, a threaded sleeve 5.25, a guide sleeve 5.26, an adjusting column 5.27, an inner wedging inclined plane 5.3, a pre-tightening compression spring 5.4, a strip-shaped hole 5.5 and a bottom edge bolt 5.6;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 1, 2 and 3, the detachable concave embedded type foundation pit inner supporting structure comprises a foundation pit retaining pile 1, a section steel surrounding purlin beam 2 arranged on the inner side of the foundation pit retaining pile, a triangular supporting member 3 arranged on the section steel surrounding purlin beam and an inner supporting beam 4. Triangular support piece passes through connecting bolt to be connected on shaped steel encloses the purlin roof beam, and in this embodiment, triangular support piece's base passes through connecting bolt to be connected on shaped steel encloses the purlin roof beam. The inner supporting beam is supported on the profile steel surrounding purlin beams through the triangular supporting pieces, and particularly, the inner supporting beam exerts prestress through the hydraulic jack, so that the triangular supporting pieces support between the profile steel surrounding purlin beams on two opposite sides, and a foundation pit is supported through the triangular supporting pieces. In this embodiment, the inner support beams are steel inner support beams. A concave embedded type conversion force transmission structure is arranged between the triangular supporting piece and the profile steel surrounding purlin beam. The concave embedded type conversion force transmission structure comprises a force transmission groove arranged on the beam of the profile steel enclosing purlin and a force transmission convex part 5 arranged on the bottom edge of the triangular supporting part. The force transfer convex piece is embedded in the force transfer groove. In this embodiment, the force transfer groove is rectangular. The connection structure that triangular support spare encloses the purlin roof beam with shaped steel in this embodiment includes concave formula conversion power transmission structure and connects the connecting bolt that triangular support spare and shaped steel enclose the purlin roof beam, and wherein concave formula conversion power transmission structure that inlays can effectual improvement triangular support spare and shaped steel enclose connection structure between the purlin roof beam's anti-shear capacity and stability to improve foundation ditch bearing structure's stability.
In this embodiment, the triangular supporting member is an isosceles triangle.
Further, as shown in fig. 2 and fig. 3, the triangular supporting member 3 includes a triangular supporting inner core 3.1 and a plurality of section steel combination layers 3.2 distributed on the waist edge of the triangular supporting inner core from inside to outside in sequence. The force transmission convex part 5 is arranged on the bottom edge of the triangular support inner core. The section steel combination layer comprises two waist-edge section steels 3.21, and the two waist-edge section steels of the section steel combination layer are distributed in a V shape. In the one deck shaped steel combination layer adjacent to triangular supports inner core: one waist-side section steel is connected to one waist side of the triangular support inner core through a bolt, and the other waist-side section steel is connected to the other waist side of the triangular support inner core through a bolt. In two adjacent layer shaped steel composite layers: the waist-side section steel of the section steel combination layer positioned on the outer side is connected with the waist-side section steel of the section steel combination layer positioned on the inner side through bolts. Therefore, the actual size of the triangular support part is adjusted by adjusting the number of layers of the section steel combination layer so as to adapt to the inner support beams with different lengths and improve the universality of the triangular support part.
The second embodiment is as follows: the specific structure of this embodiment refers to the first embodiment, and the differences are as follows:
as shown in fig. 4, 5 and 6, two outer wedge blocks 6 are arranged in the force transmission groove. The force transmission convex piece comprises two inner wedging blocks 5.1, a pre-tightening compression spring 5.4 positioned between the two inner wedging blocks and a rigid-flexible adjusting type supporting piece 5.2 positioned between the two inner wedging blocks. In this embodiment, the two outer wedging blocks are symmetrically distributed, and the two inner wedging blocks are symmetrically distributed. The two inner wedging blocks are positioned between the two outer wedging blocks, and the inner wedging blocks can move along the length direction of the bottom edge of the triangular support inner core. The side of the outer wedging block facing the inner wedging block is an outer wedging inclined plane 6.1. The side of the inner wedging block facing the outer wedging block is an inner wedging inclined plane 5.3.
The rigid-flexible adjusting type supporting piece comprises a supporting barrel 5.21, a supporting column 5.22 arranged in the supporting barrel in a sliding mode, a threaded sleeve 5.25 and a guide sleeve 5.26 arranged on the outer side face of the supporting barrel, a driving screw 5.24 matched with the threaded sleeve, an adjusting column 5.27 arranged in the guide sleeve in a sliding mode and a plurality of steel balls 5.23 filled in the supporting barrel. The first end of the supporting cylinder is closed, and the second end of the supporting cylinder is opened. The first end of a supporting cylinder is connected with one of the inner wedge blocks, and one end of the supporting column penetrates through the opening of the second end of the supporting cylinder and is connected with the other inner wedge block. The steel ball is located between the first end of the supporting cylinder and the supporting column. The threaded sleeve and the guide sleeve are positioned between the first end of the support cylinder and the support column. The threaded sleeve and the guide sleeve are coaxially distributed, in the embodiment, the threaded sleeve is positioned above the supporting cylinder, and the guide sleeve is positioned below the supporting cylinder. The driving screw is connected with the adjusting column. In this embodiment, the upper end of the driving screw is provided with a hexagonal head or a quadrangular head for cooperating with a wrench to rotate the driving screw.
When triangular support element passes through connecting bolt and connects on shaped steel encloses the purlin roof beam, through rotating drive screw drives and adjusts the post and remove toward keeping away from a support section of thick bamboo direction, makes the steel ball in the support section of thick bamboo can get into in the uide bushing to make the support column can remove toward a support section of thick bamboo, reduce the interval between the wedging piece in two, thereby make triangular support element's base can tightly lean on the side that shaped steel encloses the purlin roof beam.
After the triangular supporting piece is connected to the profile steel surrounding purlin beam through the connecting bolt, the inner wedging inclined plane of the inner wedging block abuts against the outer wedging inclined plane of the outer wedging block under the action of the pre-tightening compression spring, and the outer wedging block abuts against the inner side wall of the force transmission groove.
After the triangular supporting piece is connected to the profile steel surrounding purlin beam through the connecting bolt, the driving screw rod is rotated to drive the adjusting column to move towards the supporting cylinder, and the steel balls in the supporting cylinder are compressed tightly, so that the supporting column is supported through the steel balls in the supporting cylinder.
The force transfer convex piece is easy to have a gap after being inserted into the force transfer groove, and once the force transfer convex piece is inserted into the force transfer groove, the shear resistance of a connecting structure between the triangular supporting piece and the profile steel surrounding purlin beam can be greatly reduced; when the triangular support piece is connected to the profile steel surrounding purlin beam through the connecting bolt, the driving screw rod is rotated to drive the adjusting column to move in the direction away from the supporting cylinder, so that the steel balls in the supporting cylinder can enter the guide sleeve, the supporting column can move in the supporting cylinder, the distance between the two inner wedging blocks is reduced, and the bottom edge of the triangular support piece can be tightly leaned on the side surface of the profile steel surrounding purlin beam. After the triangular supporting piece is connected to the profile steel surrounding purlin beam through the connecting bolt, under the action of a pre-tightening compression spring, an inner wedging inclined plane of the inner wedging block abuts against an outer wedging inclined plane of the outer wedging block, and the outer wedging block abuts against the inner side wall of the force transmission groove; after the triangular support piece is connected to the profile steel surrounding purlin beam through the connecting bolt, the driving screw rod is rotated to drive the adjusting column to move towards the supporting cylinder, the steel balls in the supporting cylinder are compressed, and the supporting column is supported through the steel balls in the supporting cylinder, so that the reliability of a force transmission structure between the outer wedging block, the inner wedging block, the supporting cylinder and the supporting column is guaranteed.
The outer diameter of the adjusting column is larger than that of the driving screw, and in the embodiment, the outer diameter of the adjusting column is 3 times of that of the driving screw.
The pre-tightening compression spring is sleeved on the supporting cylinder.
The inner wedging block is provided with a strip-shaped hole 5.5, and the length direction of the strip-shaped hole is parallel to the length direction of the bottom edge of the triangular support part. Bottom side bolts 5.6 which are in one-to-one correspondence with the inner wedging blocks are arranged on the bottom sides of the triangular supporting pieces. The bottom side bolt penetrates through the strip-shaped hole in the corresponding inner wedging block, so that the inner wedging block can move along the length direction of the bottom side of the triangular support inner core.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (8)
1. A detachable concave embedded type foundation pit inner supporting structure comprises a foundation pit fender pile, a profile steel surrounding purlin beam arranged on the inner side of the foundation pit fender pile, a triangular supporting piece and an inner supporting beam, wherein the triangular supporting piece is connected to the profile steel surrounding purlin beam through a connecting bolt;
two outer wedging blocks are arranged in the force transmission groove,
the force transmission convex part comprises two inner wedging blocks, a pre-tightening compression spring positioned between the two inner wedging blocks and a rigid-flexible adjusting type supporting piece positioned between the two inner wedging blocks, the two inner wedging blocks are positioned between the two outer wedging blocks, the inner wedging blocks can move along the length direction of the bottom edge of the triangular support inner core, the side surface of each outer wedging block facing the inner wedging block is an outer wedging inclined surface, the side surface of each inner wedging block facing the outer wedging blocks is an inner wedging inclined surface,
the rigid-flexible adjusting type supporting piece comprises a supporting cylinder, a supporting column arranged in the supporting cylinder in a sliding manner, a threaded sleeve and a guide sleeve which are arranged on the outer side surface of the supporting cylinder, a driving screw rod matched with the threaded sleeve, an adjusting column arranged in the guide sleeve in a sliding manner and a plurality of steel balls filled in the supporting cylinder,
the threaded sleeve is positioned above the supporting cylinder, and the guide sleeve is positioned below the supporting cylinder;
the first end of the supporting cylinder is closed, the second end of the supporting cylinder is opened, the first end of the supporting cylinder is connected with one of the inner wedging blocks, one end of the supporting column penetrates through the second end opening of the supporting cylinder and is connected with the other inner wedging block, the steel ball is positioned between the first end of the supporting cylinder and the supporting column, the threaded sleeve and the guide sleeve are coaxially distributed, and the driving screw is connected with the adjusting column;
when the triangular support piece is connected to the profile steel purlin beam through the connecting bolt, the driving screw rod is rotated to drive the adjusting column to move in the direction away from the supporting cylinder, so that steel balls in the supporting cylinder can enter the guide sleeve, the supporting column can move in the supporting cylinder, the distance between the two inner wedging blocks is reduced, and the bottom edge of the triangular support piece can be abutted against the side face of the profile steel purlin beam;
after the triangular supporting piece is connected to the profile steel surrounding purlin beam through the connecting bolt, under the action of a pre-tightening compression spring, an inner wedging inclined plane of the inner wedging block abuts against an outer wedging inclined plane of the outer wedging block, and the outer wedging block abuts against the inner side wall of the force transmission groove;
after the triangular supporting piece is connected to the profile steel surrounding purlin beam through the connecting bolt, the driving screw rod is rotated to drive the adjusting column to move towards the supporting cylinder, and the steel balls in the supporting cylinder are compressed tightly, so that the supporting column is supported through the steel balls in the supporting cylinder.
2. The detachable supporting structure in the pit embedded type as claimed in claim 1, wherein the triangular supporting member comprises a triangular supporting inner core and at least one section steel combined layer which is sequentially distributed from inside to outside on the waist edge of the triangular supporting inner core, the force-transferring convex member is arranged on the bottom edge of the triangular supporting inner core, the section steel combined layer comprises two waist-edge section steels, and the section steel combined layer is arranged in the section steel combined layer adjacent to the triangular supporting inner core: one waist-side section steel is connected to one waist side of the triangular support inner core through a bolt, and the other waist-side section steel is connected to the other waist side of the triangular support inner core through a bolt.
3. The removable recessed embedded foundation pit support structure of claim 2, wherein in two adjacent layers of profiled steel composite layers: the waist-side section steel of the section steel combination layer positioned on the outer side is connected with the waist-side section steel of the section steel combination layer positioned on the inner side through bolts.
4. A demountable recessed excavation supporting structure as claimed in claim 1, 2 or 3, wherein the outer diameter of the adjustment column is greater than the outer diameter of the drive screw.
5. A detachable recessed foundation pit support structure as claimed in claim 1, 2 or 3, wherein the pre-tensioned compression spring is sleeved on the support cylinder.
6. A detachable recessed embedded foundation pit supporting structure as claimed in claim 1, 2 or 3, wherein the inner wedging block is provided with a strip hole, the length direction of the strip hole is parallel to the length direction of the bottom edge of the triangular supporting member, the bottom edge of the triangular supporting member is provided with bottom edge bolts corresponding to the inner wedging block one by one, and the bottom edge bolts pass through the corresponding strip hole of the inner wedging block.
7. A demountable recessed foundation pit support structure as claimed in claim 1, 2 or 3, wherein the two outer wedging blocks are symmetrically arranged and the two inner wedging blocks are symmetrically arranged.
8. A demountable recessed excavation supporting structure as claimed in claim 1, 2 or 3, wherein the triangular supports are isosceles triangles.
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| CN202010306221.7A CN111549786B (en) | 2020-04-17 | 2020-04-17 | Detachable concave embedded type foundation pit inner supporting structure |
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| CN202010306221.7A CN111549786B (en) | 2020-04-17 | 2020-04-17 | Detachable concave embedded type foundation pit inner supporting structure |
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| CN111549786B true CN111549786B (en) | 2021-06-08 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161168A (en) * | 2013-02-22 | 2013-06-19 | 东通岩土科技（杭州）有限公司 | Detachable prestress supporting frame system |
| CN103981871A (en) * | 2014-05-28 | 2014-08-13 | 德清鑫德机械有限公司 | Angle brace structure for supporting of foundation pit |
| CN204662458U (en) * | 2015-05-26 | 2015-09-23 | 东通岩土科技（杭州）有限公司 | Detachable pretightning force combined support frame system brace summer transition Connection Block |
| CN108005081A (en) * | 2017-11-07 | 2018-05-08 | 东通岩土科技（杭州）有限公司 | The internal support of foundation pit of combined type triangle part and application the combined type triangle part |
| CN212452660U (en) * | 2020-04-17 | 2021-02-02 | 浙江吉通地空建筑科技有限公司 | Detachable concave embedded type foundation pit inner supporting structure |
-
2020
- 2020-04-17 CN CN202010306221.7A patent/CN111549786B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161168A (en) * | 2013-02-22 | 2013-06-19 | 东通岩土科技（杭州）有限公司 | Detachable prestress supporting frame system |
| CN103981871A (en) * | 2014-05-28 | 2014-08-13 | 德清鑫德机械有限公司 | Angle brace structure for supporting of foundation pit |
| CN204662458U (en) * | 2015-05-26 | 2015-09-23 | 东通岩土科技（杭州）有限公司 | Detachable pretightning force combined support frame system brace summer transition Connection Block |
| CN108005081A (en) * | 2017-11-07 | 2018-05-08 | 东通岩土科技（杭州）有限公司 | The internal support of foundation pit of combined type triangle part and application the combined type triangle part |
| CN212452660U (en) * | 2020-04-17 | 2021-02-02 | 浙江吉通地空建筑科技有限公司 | Detachable concave embedded type foundation pit inner supporting structure |
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| CN111549786A (en) | 2020-08-18 |
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Denomination of invention: Removable concave embedded support structure in foundation pit Effective date of registration: 20211102 Granted publication date: 20210608 Pledgee: Hangzhou branch of Zhejiang Tailong Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG JITONG GROUND CONSTRUCTION TECHNOLOGY Co.,Ltd. Registration number: Y2021330002139 |